Los Angeles, CA – 05/13/2013 – A new study inthe journal of Cancer Epidemiology, Biomarkers and Prevention has shown thatexercise may lower a woman’s risk of breast cancer by breaking down estrogen.
Observational studies have shown for a long timean association between lowered breast cancer risk and increased exercise, butso far there is little information as to why. The new study is the first toshow how aerobic exercise influences the way the body breaks down estrogen toproduce more “good” metabolites.
391 healthy premenopausal women who ledsedentary lifestyles; 179 of them were put in a control group where they justkept living a sedentary lifestyle, while 212 were placed in an exercise groupwhere they did 30 minutes of aerobic exercises (moderate to vigorous level,such as running on a treadmill or using the elliptical machine) five days aweek for four months. Of all the women in the study, 78 percent of those fromthe exercise group and 86 percent of those from the control group completed thestudy.
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